Aechibald mceobeet blain



(No Model.)

A. MGR. BLAIN.

PITMAN CONNECTION.

Patented Apr. 13, 1886.

WMJQQIQL NITED STATES PATENT OFFICEO ARCHIBALD MOROBERT BLAIN, OFDEERFIELD, VIRGINIA.

PITMAN=CONNECTION.

EJPBCIE'ICATION forming part of Letters Eatent No. 339,733, dated April13, 1886.

Application filed January 27, 1885. Renewed September 23, 1885. SerialNo. 177,912.

to make and use the same, reference being had to the accompanyingdrawings, which form a part of this specification, and in which 7 Figure1 is a plan View of my improved pit-man connection for harvesters andother I machinery. Fig. 2 is a horizontal longitudinal sectional view ofthe same. Fig. 3 is a transverse vertical sectional view taken on theline a: a" in Fig. 2, and Fig. 4 is a detail View illustrating the partscomposing my improved so pitman-counection detached from each other.

The same letters refer to the same parts in all the figures.

This invention relates to pitnian-connections for harvesters and othermachinery; and it has for its object to provide a device which shallpossess superior advantages in point of simplicity, durability, andgeneral efficiency, and in which the cutting of a screw-thread in theend of the pitman is obviated, while at the same time provision is madefor the lengthening and shortening of the same, and for its turning inits bearings, so as to accommodate itself to the tilting of the sicklewhen the device is applied to a harvester.

\Vith these ends in view the invention consists in the improvedconstruction and arrangement of parts, which will be hereinafter fullydescribed, and particularly pointed out in the claims.

In the drawings hereto annexed, A designates a tubular sleeve or bearingadapted to bejournaled upon the wrist-pin B of a disk or crank, C,'bymeans of which the pitman is to be operated, and having alaterally-extend- 5 ing socket, D, which is interiorly screwmanipulated.J ournaled in the plug E is the (No model.)

pitman-rod G, the inner end of which has a collar or shoulder, H, toprevent its displacement, and the outer end of which has a lateral pinor stud, I, to form the connection with the sickle-bar or other part tobe operated.

It will be seen that the pitman-rod is capable of turning freely in itstubular plug or bearing, which latter may be adjusted so as to adjustthe length of the pitrnan-rod. Vhen the plug Eis screwed out, washers Jare to be placed under the shoulder of the wrench-seat and in the bottomof the socket D.

From the foregoing description, taken in connection with the drawingshereto annexed, the operation and advantages of this invention will bereadily understood. It is simple, inexpensive, convenient, and possessedof great strength and ease of adjustment.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- 1. In a pitman-connection, thecombination of a socket, a tubular plug adjustable in the same, and apitman-rod journaled in the said plug, substantially as and for thepurpose set forth.

2. In a pitman-connection, the combination of a socket mounted laterallyupon an eye or journal, a tubular plug adjustable in the said socket,and a pitman-rod journaled in the said plug, and having a shoulder atits inner end, substantially as and for the purpose herein set forth.

3. In a pitman-connection, the combination of aninteriorly-screw-threaded socket having an eye or journal, a tubularplug adjustable in the said socket, and having a wrench-seat at itsouter end, a pitman rod journaled in the said tubular plug, and having ashoulder at its inner end, and adjusting washers arranged below thecollar of the wrench-seat and at the bottom of the socket, substantiallyas and for the purpose herein set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

ARCIIIBALD MCROBER'I BLAIN.

Witnesses:

R. A. DUNLAP, J NO. W. MONTGOMERY.

